Preparation method of graphene oxide modified triptycenyl polyamide separation membrane

A technique for modification of ptycene-based polyamide and graphene, applied in separation methods, chemical instruments and methods, semi-permeable membrane separation, etc., to achieve the effects of reducing investment costs, high uniformity, and excellent mechanical properties
CN111111475AActive Publication Date: 2020-05-08NANJING UNIV OF TECH
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
NANJING UNIV OF TECH
Publication Date
2020-05-08

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Abstract

The invention discloses a preparation method of a graphene oxide modified triptycenyl polyamide separation membrane. The method comprises the following steps: carrying out polymerization reaction in an organic solvent in the presence of an acid-binding agent by using a triptycenyl compound containing an active group, a diacyl chloride compound and a graphene oxide compound as monomers; pouring a polymer solution obtained by the reaction into deionized water for precipitation, filtering out precipitates, respectively washing the precipitates with methanol and deionized water, and performing drying to obtain a graphene oxide modified triptycenyl polymer; dissolving the graphene oxide modified triptycenyl polymer in an organic solvent to prepare a membrane casting solution, coating a supportbody with the membrane casting solution, and performing drying to obtain the graphene oxide modified triptycenyl polyamide separation membrane. The triptycenyl polyamide separation membrane solves theproblem of close packing of macromolecules of a net structure, and breaks through the limitation of small flux of a traditional triptycenyl polyamide separation membrane.
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Description

technical field

[0001] The invention relates to a preparation method of a graphene oxide modified triptycene-based polyamide film, which belongs to the polymer film preparation technology and belongs to the field of polymer film. Background technique

[0002] Volatile organic compounds (VOCs) are a class of highly volatile substances. The unorganized discharge of volatile organic compounds will not only cause a large waste of resources, but also cause environmental pollution and seriously endanger human health. For this reason, the country has promulgated various laws and regulations to control the emission concentration of volatile organic compounds, such as "Comprehensive Emission Standards of Air Pollutants". In order to meet the national emission requirements, researchers have developed a variety of treatment technologies, such as using adsorption, absorption, condensation, membrane separation, etc. to treat and recover organic waste gas, and using technologies such as ...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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